Main and Helping verbs

Front

Petrified Forest attracts many tourists. Identify the helping verb.

Back

has

Front

Spectacular beauty captured imaginations. Helping verb:

Back

has

Front

Visitors can see the Painted Desert at the same time.

Back

can

Front

Desert colors change quickly. Helping verb?

Back

do

Front

Specimens of petrified wood are exhibited at the tourist information center. Identify the helping verb.

Back

are

Front

Petrified wood seen?

Back

have

Front

A guide will explain the process of petrification.

Back

will

Front

Visitors can purchase fossilized wood as a souvenir.

Back

can

Front

Tours of the Petrified Forest are not recommended for amateur hikers.

Back

are

Front

Hikes must be arranged with park rangers.

Back

must be